A number 1. aaaaa 1.7. Which of the following is equal to this number?
(Note: a can be any number from 1 to 9)
1a-1
1aa-1
la-1
1a-1
(A)
(B)
(C)
(D)
9
90
90
99
Answers
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2
Answer:
90
is the answers
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